THERMODYNAMIC AND MULTINUCLEAR MAGNETIC-RESONANCE STUDY OF DIMETHYLTIN(IV) COMPLEXES WITH TRIDENTATE LIGANDS IN AQUEOUS-SOLUTION

被引：21

作者：

CUCINOTTA, V

GIANGUZZA, A

MACCARRONE, G

PELLERITO, L

PURRELLO, R

RIZZARELLI, E

机构：

[1] UNIV CATANIA,DIPARTIMENTO SCI CHIM,I-95124 CATANIA,ITALY

[2] UNIV PALERMO,DIPARTIMENTO CHIM INORGAN,I-90134 PALERMO,ITALY

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1992年 / 14期

关键词：

D O I：

10.1039/dt9920002299

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The complex formation of [SnMe2]2+ ion with iminodiacetate, oxydiacetate and thiodiacetate ligands has been investigated by potentiometric, calorimetric and multinuclear magnetic resonance measurements in aqueous solution at 25-degrees-C and l = 0.1 mol dm-3 (KNO3). Both the thermodynamic values and NMR parameters revealed the flexibility of the organometallic ion, as regards both the Me-Sn-Me angle and its ability to adopt unusual asymmetric stereochemistries. A new stereochemistry was found for the five-coordinated iminodiacetate complex, the formation of which exhibits three-site kinetics.

引用

页码：2299 / 2304

页数：6

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